

package com.hazelcast.jet.config;

import javax.annotation.Nonnull;
import java.io.Serializable;

/**
 * An interface that can be implemented to provide custom class loader for Jet
 * job.
 * <p>
 * The classloader factory must be serializable: it is set in the {@link
 * JobConfig#setClassLoaderFactory config} and sent to members in a serialized
 * form. The returned ClassLoader doesn't have to be serializable.
 * <p>
 * It is useful in custom class-loading environments, for example in OSGi.
 *
 * @since Jet 3.0
 */
public interface JobClassLoaderFactory extends Serializable {

    /**
     * Return the class loader instance.
     */
    @Nonnull
    ClassLoader getJobClassLoader();

}
